Can you post a picture of your dress? It sounds like most people know what it looks like, but I couldn't find it :S

I feel like I'm majorly outnumbered! That probably means you shouldn't listen to me, but I personally don't feel like your hair has to be all matchy-matchy with the dress. I ended up picking a very simply beachy dress, and I'm going to have beachy hair with flowers in it, but I was feeling like my get-up was too "regular" for me so I'm getting my FI's cousin to make me a really funky and irregular wide bracelet (I want to feel like I'm expressing myself!).

I guess another thing to consider is, how formal is the wedding? Are you wanting to dress up or dress down the stuff you've already chosen? What overall look do you want? Classic...sophisticated...chic...modern...etc

After 2, I like 4 (and you even look kinda like Kate Beckinsale, so you know it'll look good!). I wouldn't worry about bun-size either, since I don't think your hair is long enough to get one of those massive ones going.